- NC / NO or NO / NO in one unit
- Separate adjustable temperatures
- Color coded temperature dials
- DIN rail mountable
The ZR 011 houses two separate thermostats, allowing the independent control of heating and cooling or other equipment.
Thermostat NC (normally closed): Thermostat opens at temperature rise - for regulating heaters or for switching signal devices. Comes with red temperature dial.
Thermostat NO (normally open): Thermostat closes at temperature rise - for regulating filter fans and heat exchangers or for switching signal devices. Comes with blue temperature dial.
|Switching difference||12.6 °F ± 7 °F tolerance (7 K ± 4 K)|
|Sensor element||thermostatic bimetal|
|Contact type||snap-action contact|
|Service life||> 100,000 cycles|
|Max. switching capacity||NC: 10 A resistive / 2 A inductive @ AC 250 V|
NO: 5 A resistive / 2 A inductive @ AC 250 V
15 A resistive / 2 A inductive @ AC 120 V
DC 30 W (DC 24-72 V)
|Max. inrush current||AC 16 A for 10 sec.|
|Connection||4-pole terminal, clamping torque 0.5 Nm max.:|
solid wire - AWG 14 max. (2.5 mm²)
stranded wire1 - AWG 16 max. (1.5 mm²)
|Housing||plastic, UL 94V-0, light grey|
|Mounting||clip for 35 mm DIN rail, EN 60715|
|Operating / Storage temperature||-49 to +176 °F (-45 to +80 °C)|
|Operating / Storage humidity||max. 90 %RH (non-condensing)|
|Dimensions||2.6 x 2.0 x 1.8” (67 x 50 x 46 mm)|
|Weight||approx. 3.2 oz. (90 g)|
|Approvals||UL File No. E164102, CSA, VDE, EAC|
¹ When connecting with stranded wires, wire end ferrules must be used.
Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.
|Part No.||Setting Range||Setting Range|
|01172.0-00||NC - open on rise||0 to +60 °C||NO - close on rise||0 to +60 °C|
|01172.0-01||NC - open on rise||+32 to +140 °F||NO - close on rise||+32 to +140 °F|
|01175.0-00||NC - open on rise||-10 to +50 °C||NO - close on rise||+20 to +80 °C|
|01175.0-01||NC - open on rise||+14 to +122 °F||NO - close on rise||+68 to +176 °F|
|01176.0-00²||NO - close on rise||0 to +60 °C||NO - close on rise||0 to +60 °C|
|01176.0-01²||NO - close on rise||+32 to +140 °F||NO - close on rise||+32 to +140 °F|
² For regulating heat exchangers and fans (e. g. LE 019) and as an alarm contact for monitoring the interior temperature of electronic enclosures.